Primer for pumps.



PATENTED 00T. 15, 1907.

J. LA VBRGNE. PRIMER FOR PUMPS.

' APPLIUATION FILED AUG. 1, 190e.

IANENTORl WITNESSES: 770

JOHN LA VERGNE, OF NEWARK, NEW JERSEY.

PRIMER FOB PUMPS.

Specification of Letters Patent;

Patented Oct. 1.5, 190'?.

Application filed August 1,1906. Serial No. 328,669. p

To all whom it may concern:

Be it known that I, JOHN LA VERGNE, a citizen of i the United States,residing at Newark, in the county l of Essex und State of N ew Jersey,have invented cer- Pumps; and 1 do hereby declare the followin`,'fg,P tobe a l full, clear, and exact description o the invention, such as willenable others skilled in the art to which it ap pertains to make and usethe same, reference being had to the accompanying drawings, and toletters oi refer i ence marked thereon, which iorm a part oi this speci-E fication. l This invention relates to a primer for pumps, and pret ierahly centrifugal pumps, and is designed to fill the pump, preliminaryto starting it, to insure the suction necessary. i As heretofore made,the primers have been very l large and bulky and have taken up a greatdeal o room, and they have also had a multiplicity of valves thatrequire considerable attention.

This invention econornizes space, furnishes a more simple d cvice, andis more easily operated. l

1 illustrate, in the accompanying drawing, a centrifi ugal pump 10huving the inlet portion 11, and the out let l2. Secured to the inletportion is a cylindrical member l, the iree end 12 of which is attachedto a suitable pipe furnishing the supply of water or liquid. (in the end14, of the cylindrical portion l3, is a check valve 15, and transverselyarranged on the cylindrical casing lil, resting.;r on the part 16, is apump 17 supplied with the pump` rod 18 and thevztlve 19, this pump heingu. lil't pump and adapted to he nranually operated by the handle 20. Atthe top oi this vertical lift pump g turod, and its simpli is an outlet21, and this is connected by the pipe 22 with au opening 23 in the sideof the .pump near the top. When it is desired to operate the pump and toestabi lish a suction, the pump l() muet be filled with water,

5 tain new and useful Improvements in Primers for l and to accomplishthis the liftpump is operated which draws water through the opening 24,through the lift pump 17 and the pipe 22 into the pump 1() until it is40 ,y filled, the water being held in the pump by the cheek valve 15.When the pump l0 is operated the valve l opens, and the pressure oivWater in tlie pumpl insureq the closing of the valve 19. This prinferis small and takes up but little ropm, is economically meunier y makesits operation in Having thus described my invention, what 1. ln a deviceof the kind described, the combinati a pump having an,lnlet pipeleading' thereto, and having :r chock vn ve therein, with a lift pumpurranged vorsoly on the inlet pipe beyond the check valve, meeuwmanually operating the lift pump, and un outlet pipe l ingr from thelift pump to the upper part of the pump For charging the same wherebythe priming,` .is done hv n pipe other than the inlet pipe.

2, A primer for pumpe; comprising n pump having,Y un inlet pipe und :inourlet `pipe, a check vulve iu the inlet pipe. n lift pump having itsinlet-on the inlet pipe of :he main pump beyond the check valve, mennefor manually operating thev lift pump. und :L `eet-ond pipe connectingthe litt pump with the iii-sl pump near the top thor-iso!" to prime thi`first pump. wllcrchy the cheek vulve is kept closed until the nmiu pumpis opcrulrd.

ln testimony, that l claim the foregoing, I have hereunto svt, my hundthis'. :Hlth doy o1" July 1006.

' .lOl-IN LA VERGNE.

Witnesses l. A, Prim, WM. 1I. CAM-unto.

